Python write_varint示例

示例#1

def message_digest(coin, message):
    h = HashWriter(sha256)
    write_varint(h, len(coin.signed_message_header))
    h.extend(coin.signed_message_header)
    write_varint(h, len(message))
    h.extend(message)
    return sha256(h.get_digest()).digest()

示例#2

def message_digest(message):
    h = HashWriter(sha256)
    signed_message_header = "Lisk Signed Message:\n"
    write_varint(h, len(signed_message_header))
    h.extend(signed_message_header)
    write_varint(h, len(message))
    h.extend(message)
    return sha256(h.get_digest()).digest()

示例#3

文件： signverify.py 项目： waaraawa/trezor-core

def message_digest(coin, message):
    h = HashWriter(sha256)
    write_varint(h, len(coin.signed_message_header))
    h.extend(coin.signed_message_header)
    write_varint(h, len(message))
    h.extend(message)
    ret = h.get_digest()
    if coin.sign_hash_double:
        ret = sha256(ret).digest()
    return ret

示例#4

文件： sign_message.py 项目： IvanSheigets/trezor-core

def message_digest(message):
    from apps.wallet.sign_tx.signing import write_varint
    from trezor.crypto.hashlib import sha3_256
    from trezor.utils import HashWriter

    h = HashWriter(sha3_256)
    signed_message_header = 'Ethereum Signed Message:\n'
    write_varint(h, len(signed_message_header))
    h.extend(signed_message_header)
    write_varint(h, len(message))
    h.extend(message)

    return h.get_digest(True)